Chemistry

Metallic electron distribution

many atoms share the electrons equally but none of the atoms want electrons ("sea of electrons")

non - polar covalent electron distribution

shared equally between two atoms

polar covalent electron distribution

shared unequally between two atom

ionic electron distribution

transferred from one atom to another

metallic EN average and difference

A- low D- low

non - polar covalent EN average and difference

A- med/high D- low/none

polar covalent EN average and difference

A- high/med D- med

Ionic EN average and difference

A- med D- high

what are the particles called for Alloy bonds

metallic

what are the particles called for molecule bonds

covalent (polar and non)

what are the particles called for formula unit bonds

ionic

physical properties for Metallic Bonds

- malleable
- insoluble
- conducts in bulk
- does not increase conductuction in water

physical properties for polar covalent bonds

- not malleable
- soluble
- does not conduct

physical properties for non polar covalent bonds

- not malleable
- insoluble
- does not conduct

physical properties for ionic bonds

- not malleable
- soluble
- does not conduct in bulk but increase conduction in water

why are metals good conducters?

none have a high EN so they don't attract or want many electrons --- they pass them on quickly from one atom to the next.

which has a larger bond angle? pyramidal or trigonal planar

trigonal because of their lone pair. pyramidal repel more pushing the bonds closer together